diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index af53fde..89f72a1 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -13,18 +13,21 @@ jobs:
     strategy:
       matrix:
         os: [macos-latest, windows-latest, ubuntu-latest]
-        node: [16, 18]
-        electron: [23, 20]
+        node: [20, 18]
+        electron: [30, 28, 23]
         exclude:
-          # older electron seems to misbehave on apple silicon
-          - os: macos-latest
-            electron: 20
+          # there's an issue with signals in retry-cli on linux in node 20 🤷‍♀️
+          - os: ubuntu-latest
+            node: 20
         include:
           - os: ubuntu-latest
-            node: 14
+            node: 16
+            electron: 20
+          - os: ubuntu-latest
+            node: 16
             electron: 18
           - os: ubuntu-latest
-            node: 14
+            node: 16
             electron: 16
           - os: windows-latest
             node: 14
diff --git a/src/hook.js b/src/hook.js
index af7ae04..bc61618 100644
--- a/src/hook.js
+++ b/src/hook.js
@@ -1,5 +1,6 @@
 const electron = require('electron');
 const required = require('runtime-required');
+const path = require('path');
 
 const logLevel = process.env.ELECTRONMON_LOGLEVEL || 'info';
 const log = require('./log.js')(process.stdout, logLevel);
@@ -8,6 +9,25 @@ const queue = require('./message-queue.js');
 
 const pathmap = {};
 
+// we can get any number of arguments... best we can do
+// is check if all of them resolve to a file, and if they do
+// assume that file is a main process file
+(function addMainFile(args) {
+  for (const arg of args) {
+    try {
+      const argPath = path.resolve(arg);
+      const file = require.resolve(argPath);
+      pathmap[file] = true;
+      queue({ type: 'discover', file });
+    } catch (e) {
+      // you know... because lint
+      e;
+    }
+  }
+})(process.argv.slice(3));
+// we run `electron --require hook.js ...`
+// so remove the first 3 arguments
+
 function exit(code) {
   electron.app.on('will-quit', () => {
     electron.app.exit(code);